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Abstract Detail



Ecophysiology

Howladar , Saad Mohammed [1], Osman, Ashraf Sh. [2], Rady, Mostafa M.  [3].

Exogenously-applied sulphur and ascorbic acid positively altered their endogenous concentrations, and increased growth and yield in Cucurbita pepo L. plants grown on a newly-reclaimed saline soil.

The effects of soil application with sulphur (SAS) at a rate of 500 kg ha–1 and/or foliar application with some rates of ascorbic acid (FAA; 0, 1 or 2 mM) on the growth, fruit yield and its components, the concentrations of potassium (K), sodium (Na), sulphur (S) and ascorbic acid (AsA), and the ratio of K/Na in squash (Cucurbita pepo L.) plants grown on a newly-reclaimed saline soil were investigated. A 2-season field experiment (2012 and 2013) was performed on a newly-reclaimed saline soil using a design of completely randomized blocks with six treatments, each with four replicates. The results indicated that SAS and/or FAA increased growth traits (i.e., stem length, canopy dry weight plant–1, number of leaves plant–1, average leaf area and total leaf area plant–1), fruit yield and its components (i.e., number of fruits plant–1, fruit weight plant–1, average fruit weight and fruit yield ha–1), leaf concentrations of K, S and AsA, and K/Na ratio. In contrast, leaf concentration of Na was reduced as a result in SAS and/or FAA. SAS and FAA, therefore, have the potential to be used as a soil and foliar applications, respectively for various crops to overcome the adverse effects of the newly-reclaimed saline soils.


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1 - Al-Baha University, Biology, P.O.Box# 3318, Abdullah Areef, Makkah, Makkah Al-mukrmah, N/A, 21955, Saudi Arabia
2 - Fayoum University, Horticulture, Faculty of Agriculture, Fayoum, 63514
3 - Fayoum University, Botany, Faculty of Agriculture, Fayoum, 63514

Keywords:
Squash (Cucurbita pepo L.)
sulphur
ascorbic acid
salinity
growth
yield.

Presentation Type: Poster:Posters for Topics
Session: P
Location: Eyrie/Boise Centre
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PEP001
Abstract ID:59
Candidate for Awards:None


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